Cub Cadet 1000 SERIES Service Manual page 76

Series 1000 and 1500
to, but much less complex than the transition
that the auto industry made with the conversion
to fuel injection in the 1980s.
• The starter safety circuit has no connection to
the RMC module.
• The safety circuits that are capable of turn-
ing-off the engine work through the RMC mod-
ule.
• It is still important to be familiar with the workings
of the individual components of the electrical
system, but some of them can now be checked
from a central point on the tractor. This
makes life easier on the technician, frequently
making it unnecessary to connect to difficult to
reach switches in the preliminary stages of diag-
nosis.
• The function of individual safety switches can be
seen as providing information "inputs" to the
RMC module.
• The next part of this section gives a detailed
description of the electrical components on
this tractor, their function in the system, and their
physical location on the tractor. Armed with this
information and the proper tools, a technician
should be able to efficiently diagnose most elec-
trical problems.
NOTE: The test procedures for the normal mode
in the RMC system are the same as the Pre-
RMC system and will not be called out sepa-
rately in this manual.
38.3. The Key Switch is similar to those used in a
variety of MTD applications since 1999. The dif-
ference in this case is that it is incorporated in
the same housing as the RMC module; the two
items are not available separately. See Figure
38.3.
RMC module
38.4. In the OFF position, continuity can be found
between the M, G, and A1 terminals. See Figure
38.4.
• M is connected to the magneto by a yellow wire,
G is connected to ground by a green wire, and
A1 is connected to the after fire solenoid and
alternator.
• In the OFF position, the magneto primary wind-
ings are grounded, disabling the ignition system.
The alternator output that normally keeps the
after fire solenoid powered-up is given a more
direct path to ground, depriving the after fire
solenoid of power. This turns-off the fuel supply.
72
Key switch
Figure 38.3
Figure 38.4